C13332313311211113313331333133313331323321333133313232233112323231   >>    C1333231331121111331333133313331333132332133313331323223311232323   <<    C13332313311211113313331333133313331323321333133313232233112323233   >>      C13332313311211113313331333133313331323321333133313232233112323232   >>